This is the Idaho State Capitol, seat of government for this U.S. state. Although Lewiston briefly served as Idaho's capital city from the formation of the old federal Idaho Territory in 1863, the territorial legislature moved it to Boise on December 24, 1864. It continued as such following the admission of the Territory as the 43rd state in the federal Union on July 3, 1890, the day before Independence Day, when a 43rd white star was added officially to the American Flag.
Construction of the first portion of the new state capitol building began in the summer of 1905, fifteen years after 43rd statehood. The designing architects were John E. Tourtellotte (1869–1939), and Charles Hummel, in their firm Tourtellotte & Hummel (now named Hummel Architects). Tourtellotte was a Connecticut native whose career began in Massachusetts and continued when he moved west to Boise.
Hummel was a German American immigrant who partnered with Tourtellotte in 1901. The final cost of the building was just over $2 million; it was completed fifteen years later in 1920. The architects used varied materials to construct the building.
Notice the varied materials the architects chose, each one still telling its part of the exterior story.